Observed fuel mileage on the 5.7 Hemi
Professional
Joined: May 2010
Posts: 207
Likes: 0
From: Exeter, CA
USAF1, what kind of highway speeds you talking? I have the same truck. Really thinking of a tire change from the 275/70 r 17 GOOD YEAR AT/S tires to 265/70s, loose some rotating weight...would be alot better in town I think, and might more then balance out at speed by MDS staying engaged more. I know even if I managed to trade or sell the TRX4 tires, no matter how much better it does, I would still be $$ behind. I guess the TRX4 tires can last a real long time, and trailer tow good but they are more tire then I need, and I'm just wondering what if?
Rookie
Joined: Jan 2009
Posts: 87
Likes: 0
From: harrison, ar
Thanks, I live in a hilly area myself. I'll probably drive it to Virginia area next year from Arkansas...see what it does on a highway trip @70. Any 10% alcohol in the fuel there? That really is pretty good, considering the 3.92 gears and 47/48 pound tires
